鼠标事件 在 Qt 中,⿏标事件是⽤ QMouseEvent 类来实现的。当在窗⼝中按下⿏标或者移动⿏标时,都会产⽣⿏标事件。...利⽤ QMouseEvent 类可以获取⿏标的哪个键被按下了以及⿏标的当前位置等信息。...在 Qt 帮助⽂档中查找 QMouseEvent 类如下图⽰: (1)鼠标单击事件 在 Qt 中,⿏标按下是通过虚函数 mousePressEvent() 来捕获的。...mouseReleaseEvent() 函数原型如下: [virtual protected] void QWidget::mouseReleaseEvent(QMouseEvent *event)...mouseDoubleClickEvent() 函数原型如下: [virtual protected] void QWidget::mouseDoubleClickEvent(QMouseEvent
QWidgetdef get_time_str() -> str: return datetime.now().isoformat(sep = ' ')def gen_event_str(event: QMouseEvent...v_layout) self.setCentralWidget(container) # 需要先按下鼠标按钮再移动才能触发 def mouseMoveEvent(self, event: QMouseEvent...如果想让事件继续传播,可以调用 event.ignore() """ event.accept() def mousePressEvent(self, event: QMouseEvent...self.clicked_label.setText(gen_event_str(event)) event.accept() def mouseReleaseEvent(self, event: QMouseEvent
2、在dialog.h里面添加如下代码 引入头文件 #include #include #include #include 函数声明 protected: void paintEvent(QPaintEvent *); void mouseReleaseEvent(QMouseEvent...*); void mousePressEvent(QMouseEvent *); void mouseMoveEvent(QMouseEvent *); 私有变量 private:...void Dialog::mouseMoveEvent(QMouseEvent *event){ if(event->buttons()&Qt::LeftButton)...update();//进行绘制 } } //当鼠标释放时,也进行重新绘制 void Dialog::mouseReleaseEvent(QMouseEvent
): if QMouseEvent.button()==Qt.LeftButton: self.m_drag=True self.m_DragPosition=QMouseEvent.globalPos...()-self.pos() QMouseEvent.accept() self.setCursor(QCursor(Qt.OpenHandCursor)) def mouseMoveEvent...(self, QMouseEvent): if Qt.LeftButton and self.m_drag: self.move(QMouseEvent.globalPos()-self.m_DragPosition...) QMouseEvent.accept() def mouseReleaseEvent(self, QMouseEvent): self.m_drag=False self.setCursor...): if QMouseEvent.button()==1: self.i+=1 self.mypix() def timeChanged(self): self.i
); public slots: protected: void paintEvent(QPaintEvent *); //绘制 void mousePressEvent(QMouseEvent...*e); //按下 void mouseMoveEvent(QMouseEvent *e); //移动 void mouseReleaseEvent(QMouseEvent...*e); //松开 void mouseDoubleClickEvent(QMouseEvent *event); //双击 bool bDraw;.../ GRAPHICSPAINTER_H GraphicsPainter.cpp: #include "graphicspainter.h" #include #include <QMouseEvent...//按下 void GraphicsPainter::mousePressEvent(QMouseEvent *e) { if(bDraw) { if(!
(QMouseEvent \*); // 鼠标移动消息,默认要在触发了mousePressEvent后才生效 // 需要在构造函数中调用 this->setAttribute(Qt::WA\_MouseTracking...); void mouseMoveEvent(QMouseEvent \*); // 鼠标进入窗口范围内消息 void enterEvent(QEvent \*); // 鼠标离开窗口范围内消息 void...) : QWidget(parent) { this->setAttribute(Qt::WA_MouseTracking); } void CWidget::mousePressEvent(QMouseEvent..."; } } void CWidget::mouseReleaseEvent(QMouseEvent *ev) { // 鼠标左键单击弹起 if (ev->button() == Qt:...{ // 双击消息,会产生一次 mousePressEvent qDebug() << “doubleClick…”; } void CWidget::mouseMoveEvent(QMouseEvent
Widget(QWidget *parent = nullptr); ~Widget(); // 鼠标点击事件 void mousePressEvent(QMouseEvent...Ui::Widget *ui; }; 2、在 “widget.cpp” ⽂件中实现 ⿏标点击事件 和 拦截事件; #include #include void Widget::mousePressEvent(QMouseEvent *event) { if(event->button() == Qt::LeftButton...* event = static_cast(e); QString str = QString("Event 函数中鼠标按下: x = %1, y =...* event = static_cast(e); QString str = QString("事件过滤器中鼠标按下:x = %1, y =
QRect tempRt(m_startPT, m_endPT); p.drawRect(tempRt); } } void Widget::mousePressEvent(QMouseEvent...>pos(); isPressedWidget = true; // 当前鼠标按下的即是QWidget而非界面上布局的其它控件 } void Widget::mouseMoveEvent(QMouseEvent...{ m_endPT = event->pos(); } this->update(); } void Widget::mouseReleaseEvent(QMouseEvent...void mouseReleaseEvent(QMouseEvent *event); void mouseMoveEvent(QMouseEvent *event); void mousePressEvent...(QMouseEvent *event); void paintEvent(QPaintEvent *p); private slots: void on_pushButton_clicked
self.setMask(self.pix) print(self.pix.size()) self.dragPosition = None # 重定义鼠标按下响应函数mousePressEvent(QMouseEvent...)和鼠标移动响应函数mouseMoveEvent(QMouseEvent),使不规则窗体能响应鼠标事件,随意拖动。...Qt.OpenHandCursor)) if event.button() == Qt.RightButton: self.close() def mouseMoveEvent(self, QMouseEvent...): if Qt.LeftButton and self.m_drag: # 当左键移动窗体修改偏移值 self.move(QMouseEvent.globalPos...() - self.m_DragPosition) QMouseEvent.accept() def mouseReleaseEvent(self, QMouseEvent):
事件处理 QT中,事件作为一个对象,继承自QEvent类,常见的有键盘事件QKeyEvent、鼠标事件QMouseEvent和定时器事件QTimerEvent等。...explicit MouseEvent(QWidget *parent = 0); ~MouseEvent(); protected: void mousePressEvent(QMouseEvent...*event);//鼠标按下 void mouseMoveEvent(QMouseEvent *event);//鼠标移动 void mouseReleaseEvent(QMouseEvent...* mouseEvent = (QMouseEvent*)event; if(mouseEvent->button() & Qt::LeftButton)...* mouseEvent = (QMouseEvent*)event; if(mouseEvent->button() & Qt::LeftButton)
隐藏后,会发现无法我们无法移动窗口了,想要移动窗口,我们需要进行鼠标事件重写,包括mousePressEvent(QMouseEvent *event),mouseMoveEvent(QMouseEvent...*event),mouseReleaseEvent(QMouseEvent *event)。...首先在mainwindow.h中声明这三个函数: void mousePressEvent(QMouseEvent *event);//鼠标点击 void mouseMoveEvent(...QMouseEvent *event);//鼠标移动 void mouseReleaseEvent(QMouseEvent *event);//鼠标释放 //添加类成员m_point(QPoint...类型) QPoint m_point; mianwindow.cpp中进行定义: void MainWindow::mousePressEvent(QMouseEvent *event) { if
void mousePressEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton) { /* 捕获按下时坐标...m_startPoint = frameGeometry().topLeft() - event->globalPos(); } } void mouseMoveEvent(QMouseEvent...完整代码 #include #include #include #include #include rect(), QColor(0, 0, 0, 0x20)); /* 设置透明颜色 */ } void mousePressEvent(QMouseEvent...m_startPoint = frameGeometry().topLeft() - event->globalPos(); } } void mouseMoveEvent(QMouseEvent
painter.drawRect(QRect(sx,sy,ex-sx,ey-sy)); } painter.end(); } void screenview::mousePressEvent(QMouseEvent...event->y(); startpoint=event->pos(); } update(); } void screenview::mouseMoveEvent(QMouseEvent...; ey=event->y(); endpoint=event->pos(); update(); } void screenview::mouseReleaseEvent(QMouseEvent...); ~screenview(); protected: void paintEvent(QPaintEvent *event); void mousePressEvent(QMouseEvent...*event); void mouseMoveEvent(QMouseEvent *event); protected slots: void mouseReleaseEvent(QMouseEvent
void mouseReleaseEvent(QMouseEvent *event); void mouseMoveEvent(QMouseEvent *event); void mousePressEvent...(QMouseEvent *event); private: ............->setupUi(this); setWindowFlags(Qt::FramelessWindowHint); } void login_main::mousePressEvent(QMouseEvent...(); isPressedWidget = true; // 当前鼠标按下的即是QWidget而非界面上布局的其它控件 } void login_main::mouseMoveEvent(QMouseEvent...m_lastPos.y())); m_lastPos = event->globalPos(); } } void login_main::mouseReleaseEvent(QMouseEvent
*event); void mousePressEvent(QMouseEvent *event); void mouseReleaseEvent(QMouseEvent *event...*event); void mousePressEvent(QMouseEvent *event); void mouseReleaseEvent(QMouseEvent *event...*event); void mousePressEvent(QMouseEvent *event); void mouseReleaseEvent(QMouseEvent *event...*event); void mousePressEvent(QMouseEvent *event); void mouseReleaseEvent(QMouseEvent *event...); QPoint z; protected: void mouseDoubleClickEvent(QMouseEvent *event); //鼠标双击事件 }; #endif
event.accept() self.setCursor(QCursor(Qt.OpenHandCursor)) def mouseMoveEvent(self, QMouseEvent...): if Qt.LeftButton and self.m_drag: self.move(QMouseEvent.globalPos() - self.m_DragPosition...) QMouseEvent.accept() def mouseReleaseEvent(self, QMouseEvent): self.m_drag = False
PlayerSlider继承自QSlider,行为定义如下: #ifndef PLAYERSLIDER_H #define PLAYERSLIDER_H #include #include <QMouseEvent...sigProgress(qint64); private: bool m_bPressed; protected: void mousePressEvent(QMouseEvent...*); void mouseMoveEvent(QMouseEvent *); void mouseReleaseEvent(QMouseEvent *);...QWidget * parent) : QSlider(parent) { m_bPressed = false; } void PlayerSlider::mousePressEvent(QMouseEvent...*e) { QSlider::mouseMoveEvent(e);//必须有这句,否则手动不能移动滑块 } void PlayerSlider::mouseReleaseEvent(QMouseEvent
要包含头文件#include 1.1效果 ?...2.代码 2.1.鼠标事件代码 在头文件中声明 protected: //mouse void mouseMoveEvent(QMouseEvent *event); //移动 void...mousePressEvent(QMouseEvent *event); //单击 void mouseReleaseEvent(QMouseEvent *event); /.../释放 void mouseDoubleClickEvent(QMouseEvent *event); //双击 void wheelEvent(QWheelEvent *event);...//滑轮 在源文件中实现 void check_keyboard_mouse::mouseMoveEvent(QMouseEvent *event) {//移动 QPoint p_ab = event
TestMouseEvent 在widget.cpp中添加代码 #include "widget.h" #include "ui_widget.h" #include #include<QMouseEvent...QEvent *ev) { if ((ev->type() == QEvent::MouseButtonPress)&&(i%2==0)) { i++; QMouseEvent...*me1 = static_cast (ev); 相对坐标 //qDebug() << "MouseButtonPress " << me1...= 0)) { i++; QMouseEvent *me2 = static_cast (ev); 相对坐标
static bool isPressed = false; if (event->type() == QEvent::MouseButtonPress) { QMouseEvent...*e = static_cast(event); if (this->rect().contains(e->pos()) && (e->button...true; } } else if (event->type() == QEvent::MouseMove && isPressed) { QMouseEvent...*e = static_cast(event); int dx = e->pos().x() - lastPoint.x();
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